# 设置类
class Settings:
    # 初始化游戏设置
    def __init__(self):
        # 屏幕设置
        self.screen_width = 480
        self.screen_height = 852
        self.bg_color = (230, 230, 230)
        # 飞船速度设置
        self.ship_limit = 3
        # 子弹相关设置
        self.bullet_width = 4
        self.bullet_height = 20
        self.bullet_color = (60, 60, 60)
        # 子弹数量限制设置
        self.bullets_allowed = 10
        # 敌人设置
        self.fleet_drop_speed = 15
        # 加快游戏节奏
        self.speedup_scale = 1.1
        # 点数提高速度
        self.score_scale = 1.5

        self.initialize_dynamic_settings()

    # 初始化随着游戏进行变化的设置
    def initialize_dynamic_settings(self):
        self.ship_speed_factor = 3
        self.bullet_speed_factor = 3
        self.alien_speed_factor = 1
        # 移动方向（1右，-1左）
        self.fleet_direction = 1
        # 计分
        self.alien_points = 50


    # 提高速度设置
    def increase_speed(self):
        self.ship_speed_factor *= self.speedup_scale
        self.bullet_speed_factor *= self.speedup_scale
        self.alien_speed_factor *= self.speedup_scale
        self.alien_points = int(self.alien_points * self.score_scale)
